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3. Use of language Attribute in script Elements

If you use JavaScript with any frequency, surely you've seen syntax like
this:

<script language="JavaScript 1.1"> . . . </script>

The language attribute was formally deprecated in HTML 4.01. As a result,
it cannot be used in HTML 4.01 Strict, XHTML 1.0 Strict, or XHTML 1.1. The only
problems that might possibly be encountered by removing this attribute influence
browsers that are so old that some readers weren't born when they were
in use. Okay, I'm exaggerating, but you get the point. In almost every
contemporary case, eliminate the use of the language attribute.

However, the type attribute is required. So, instead of your
script elements looking as they do in the prior code sample, your
script element should look like this: